Trait method lrs::undef::UndefState::set_undef

Creates an undefined state.

Syntax

unsafe fn set_undef(val: *mut Self, n: usize) -> ()

Name	Description
val	A storage location suitable to hold an object of type `Self`.
n	The id of the undefined state.

This function behaves as follows:

If n is greater than or equal to Self::num(), the process is aborted.
The implementation does not inspect the object pointed to by val.
After the function returns, the storage location does not contain an object of type Self.
After the function returns, the storage location is in the undefined state n.